中国组织工程研究与临床康复2011，Vol.15Issue(38)：7139-7141,3.DOI:10.3969/j.issn.1673-8225.2011.38.025
氮离子溅射对镍铬合金表面细菌黏附的影响
Influence of N+ ion sputtering on bacteria adhesion of Ni-Cr alloy
史艳蕾1
作者信息
- 1. 上海市长宁区中心医院口腔科,上海市,200336
- 折叠
摘要
Abstract
BACKGROUND: Ni-Cr alloy is widely used in dental field. A large number of experiments have been performed to study itsmechanical propert ies, corrosion resistance and biocompatibility.OBJECTIVE: To study the influence of N+ ion sputtering on bacteria adhesion of clinically used Ni -Cr alloy.METHODS: A hundred and forty-four pieces of Ni -Cr alloy were made, and 72 were randomly chosen. Then N+ ion sputter wasused to the surface modification of chosen Ni -Cr alloys as experimental group, while others served as controls. Strep. sanguis,Actinomyces viscosus, Candida albicans were adhered onto the surfaces of Ni-Cr alloys, and then the number of bacteria wasassayed by means of clone forming unit (CFU) method.RESULTS AND CONCLUSION: At 24, 48 and 168 hours, the number of the adhered Strep. sanguis, Actinomyces viscosus,Candida albicans was significantly reduced in N+ ion sputtering Ni -Cr alloy group (P ＜ 0.001), indicating that N+ ion sputteringmay reduce bacterium adhesion on Ni -Cr alloy.关键词
镍铬合金/氮离子溅射/细菌黏附/链球菌/黏性放线菌/白色念珠菌分类
基础医学引用本文复制引用
史艳蕾..氮离子溅射对镍铬合金表面细菌黏附的影响[J].中国组织工程研究与临床康复,2011,15(38):7139-7141,3.
